Huff T B, Cheng J-X
Department of Chemistry,Purdue University, West Lafayette, IN 47907, USA.
J Microsc. 2007 Feb;225(Pt 2):175-82. doi: 10.1111/j.1365-2818.2007.01729.x.
We report in vivo nonlinear optical imaging of mouse sciatic nerve tissue by epidetected coherent anti-Stokes Raman scattering and second harmonic generation microscopy. Following a minimally invasive surgery to open the skin, coherent anti-Stokes Raman scattering imaging of myelinated axons and second harmonic generation imaging of the surrounding collagen fibres were demonstrated with high signal-to-background ratio, three-dimensional spatial resolution, and no need for labelling. The underlying contrast mechanisms of in vivo coherent anti-Stokes Raman scattering were explored by three-dimensional imaging of fat cells that surround the nerve. The epidetected coherent anti-Stokes Raman scattering signals from the nerve tissues were found to arise from interfaces as well as back reflection of forward coherent anti-Stokes Raman scattering.
我们报告了通过表皮检测相干反斯托克斯拉曼散射和二次谐波产生显微镜对小鼠坐骨神经组织进行的体内非线性光学成像。在进行微创皮肤切开手术后,展示了有髓轴突的相干反斯托克斯拉曼散射成像以及周围胶原纤维的二次谐波产生成像,具有高信噪比、三维空间分辨率且无需标记。通过对神经周围脂肪细胞的三维成像探索了体内相干反斯托克斯拉曼散射的潜在对比机制。发现来自神经组织的表皮检测相干反斯托克斯拉曼散射信号源于界面以及向前相干反斯托克斯拉曼散射的背向反射。